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Systems, methods, and apparatus to preheat welding wire

A technology of preheating control and preheating voltage, used in welding equipment, arc welding equipment, metal processing equipment, etc., can solve the problem of not providing electrode heating solutions.

Active Publication Date: 2020-09-18
ILLINOIS TOOL WORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prior art does not provide a solution designed to ensure that the electrodes are heated before initiating the welding operation

Method used

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  • Systems, methods, and apparatus to preheat welding wire
  • Systems, methods, and apparatus to preheat welding wire
  • Systems, methods, and apparatus to preheat welding wire

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Embodiment Construction

[0062] The present invention relates to a system, method and apparatus for preheating a welding wire electrode. Preferred embodiments of the present invention are described herein in detail with reference to the following drawings. The same reference numbers are used throughout the drawings to depict like or analogous elements.

[0063] To promote an understanding of the principles of the claimed technology, and to present its presently understood best mode of operation, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It should be understood, however, that this is not intended to limit the scope of the claimed technology, such alterations and further modifications in the described devices, and such other applications of the principles of the claimed technology as described herein is expected to be ordinarily within the mind of a person skilled in the art to which the claimed technology pertains...

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Abstract

An example welding-type system includes: a welding-type power source configured to provide welding-type current to a welding-type circuit, the welding-type circuit comprising a welding-type electrodeand a first contact tip of a welding torch; an electrode preheating circuit configured to provide preheating current through a first portion of the welding-type electrode via a second contact tip of the welding torch; a switching circuit configured to control a current flow between the welding-type power source and the first contact tip; and a preheat control circuit configured to control the switching circuit to: selectively direct current from the welding-type power source to the second contact tip; and selectively divert current from the electrode preheating circuit to the first contact tip.

Description

[0001] Related applications [0002] This international patent application claims U.S. Patent Application Serial No. 15 / 720, entitled "Systems, Methods, and Apparatus to Preheat Welding Wire," filed September 29, 2017, 121 priority. The entire contents of US Patent Application Serial No. 15 / 720,121 are incorporated herein by reference. Background technique [0003] Welding is an increasingly common process in all industries. Welding, by its very nature, is simply a way of joining two pieces of metal. A wide variety of welding systems and welding control schemes have been implemented for various purposes. In continuous welding operations, metal inert gas (MIG) welding and submerged arc welding (SAW) techniques allow continuous welds to be formed by feeding a welding wire shielded by an inert gas from a welding torch. This wire feed system can be used in other welding systems such as tungsten inert gas (TIG) welding. Electrical power is applied to the wire and through a wor...

Claims

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Application Information

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IPC IPC(8): B23K9/09B23K9/10B23K9/173
CPCB23K9/091B23K9/1093B23K9/173
Inventor 杰克·茨魏尔詹姆斯·李·于克尔奎恩·威廉·沙尔特纳
Owner ILLINOIS TOOL WORKS INC
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